基于虚拟正交试验的关节轴承挤压成形数值模拟分析

Numerical Simulation Analysis for Spherical Plain Bearing Extrusion Based on Virtual Orthogonal Experiment

以国产某型号关节轴承为研究对象,基于自开发有限元平台建立关节轴承挤压装配过程的有限元仿真模型。基于模拟仿真的虚拟正交试验,选取轴承内外圈间隙,模具挤压行程等工艺参数作为实验因素,选取轴承密合度为衡量目标,通过正交试验设计,对多目标工艺参数进行优化,并得到了不同工艺参数对轴承密合度的影响程度以及较优的工艺参数。

Based on the self-developing platform,the finite element simulation model of the extrusion as-sembly process for a certain type of domestic joint bearing was established.Based on the simulation of the virtual orthogonal experiment,the bearing inner and outer ring clearance and die extrusion stroke process parameters were selected as the experimental factors.Selecting bearing fit as the measuring goal,through the orthogonal experiment design,the multi-objective process parameters were optimized,the influence degree of different process parameters on bearing fit was known,and the optimum process parameters were obtained.